For some time now, black holes have been a popular testing ground of various
effects possibly implied by quantum gravity. Examples include quantum
corrections to Newton's law, modified horizon dynamics, implications for
Hawking radiation and the information loss problem, potential resolutions of
the central singularity, or speculations about the post-singular life of a
black hole. A large variety of methods have been applied, ranging from
effective field theory [1]}, [2]}, [3]} to
proposed non-perturbative ingredients of approaches such as string theory or
loop quantum gravity.
